Crude and adjusted mortality ratios (MRs) during three years of follow up among patients examined with first time coronary angiography for known or suspected ischaemic heart disease in 1992, 1996, and 2000
| Year | No | Deaths during follow up | Crude MR(95% CI) | Adjusted MR* (95% CI) |
|---|---|---|---|---|
| *Adjusted for age, sex, indication (acute or elective), angiographic status, and Charlson co-morbidity index. | ||||
| CI, confidence interval. | ||||
| 1992 | 1578 | 188 | 1.0 (reference) | 1.0 (reference) |
| 1996 | 1709 | 185 | 0.91 (0.74 to 1.11) | 0.83 (0.66 to 1.06) |
| 2000 | 3734 | 419 | 0.94 (0.80 to 1.11) | 0.69 (0.55 to 0.87) |